package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("image.jpeg");
        BufferedInputStream bis = new BufferedInputStream(fis);

        FileOutputStream fos = new FileOutputStream("image3.jpeg");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        int d;
        long start = System.currentTimeMillis();
        while ((d=bis.read())!=-1){
            bos.write(d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕"+(end-start)+"ms");
        bos.close();
        bis.close();
    }
}
